# VCO 3340 Sine wave

**URL:** <https://lookmumnocomputer.discourse.group/t/vco-3340-sine-wave/1337>\
**Category:** DIY STUFF\
**Created:** [June 29, 2020, 10:52pm UTC](https://lookmumnocomputer.discourse.group/t/vco-3340-sine-wave/1337 "2020-06-29T22:52:03Z")\
**Posts on this page:** 1\
**Showing post:** 54

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**Author:** ![analogoutput](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/analogoutput/32/29663_2.png) [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)\
**Post date:** [February 23, 2023, 9:05pm UTC](https://lookmumnocomputer.discourse.group/t/vco-3340-sine-wave/1337/54 "2023-02-23T21:05:36Z")

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If you mean the one [here](https://lookmumnocomputer.discourse.group/t/vco-3340-sine-wave/1337) it’s quite similar to what I used in my [3340 based VCO](https://lookmumnocomputer.discourse.group/t/hero-and-sidekick-vcos/5179), which is based on the VCO Maximus tri to sine section shown [above](https://lookmumnocomputer.discourse.group/t/vco-3340-sine-wave/1337/19).

No need to thermally couple the transistors, that would be more for a V/oct exponential converter circuit where you need very good thermal stability, which isn’t the case here.

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_[View the full topic](https://lookmumnocomputer.discourse.group/t/vco-3340-sine-wave/1337)._